Check_MK Werk 2684: Added icons for downloading agent data / walks of hosts

ID: 2684 Title: Added icons for downloading agent data / walks of hosts Component: Multisite Level: 1 Class: New Feature Version: 1.2.7i4 Created two new icons which can be used to download the agent output of a host (equals to cmk -d [hostname]) and one for downloading the SNMP walk of a host (equals to cmk --snmpwalk [hostname]).